Carl Sagan: Difference between revisions

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* [https://archive.org/details/NASA_NTRS_Archive_19630011050 "NASA Technical Reports Server (NTRS) 19630011050: Direct Contact Among Galactic Civilizations by Relativistic Interstellar Spaceflight"], Carl Sagan, when he was at Stanford University, in 1962, produced a controversial paper funded by a NASA research grant that concludes ancient alien intervention may have sparked human civilization.
==YouTube Videos==
{{YouTube Videos|{{PAGENAME}}|PQ4qBBWv3b4|Sagan interviewed by Ted Turner, ''CNN'', 1989, video: 44 minutes!tst}}
 
==Notes==